Script to install as KDE Plasma 6 day/night dynamic wallpapers

[dylandhall]

Hi guys, I wanted to use the standard KDE Plasma 6 dynamic wallpapers, so I made a script (can be added to the repository root as install_plasma6.sh - happy to do a PR with it if anyone wants it) to use all wallpapers with two images, and create the appropriate structure for dynamic wallpapers in KDE.

Script:

#!/bin/bash
#
# Convert Dynamic Wallpapers to KDE Plasma 6 packages
# Processes folders with exactly 2 images (day/night pairs)
# Requires: ImageMagick (for 'identify' command)
#

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SOURCE_DIR="$SCRIPT_DIR/Dynamic_Wallpapers"
OUTPUT_DIR="$HOME/.local/share/wallpapers"

# Check for ImageMagick
if ! command -v identify &> /dev/null; then
    echo "Error: ImageMagick is required but not installed."
    echo "Install with: sudo apt install imagemagick"
    exit 1
fi

# Create output directory
mkdir -p "$OUTPUT_DIR"

processed=0
skipped=0

# Process each subfolder
for folder in "$SOURCE_DIR"/*/; do
    [ -d "$folder" ] || continue
    
    folder_name=$(basename "$folder")
    
    # Skip Output folder if it exists
    [ "$folder_name" = "Output" ] && continue
    
    # Get image files (common formats)
    mapfile -t images < <(find "$folder" -maxdepth 1 -type f \( -iname "*.png" -o -iname "*.jpg" -o -iname "*.jpeg" -o -iname "*.webp" \) | sort)
    
    # Only process folders with exactly 2 images
    if [ "${#images[@]}" -ne 2 ]; then
        echo "✗ Skipped: $folder_name (${#images[@]} images, need 2)"
        ((skipped++))
        continue
    fi
    
    day_image="${images[0]}"
    night_image="${images[1]}"
    
    # Get dimensions using ImageMagick identify
    dimensions=$(identify -format "%wx%h" "$day_image" 2>/dev/null)
    if [ -z "$dimensions" ]; then
        echo "✗ Skipped: $folder_name (could not read image dimensions)"
        ((skipped++))
        continue
    fi
    
    # Get file extension from day image
    extension="${day_image##*.}"
    extension="${extension,,}"  # lowercase
    new_filename="${dimensions}.${extension}"
    
    # Create package structure
    package_dir="$OUTPUT_DIR/${folder_name}_Wallpaper"
    images_dir="$package_dir/contents/images"
    images_dark_dir="$package_dir/contents/images_dark"
    
    mkdir -p "$images_dir" "$images_dark_dir"
    
    # Copy and rename images
    cp "$day_image" "$images_dir/$new_filename"
    cp "$night_image" "$images_dark_dir/$new_filename"
    
    # Create metadata.json
    cat > "$package_dir/metadata.json" << EOF
{
    "KPackageStructure": "Wallpaper/Images",
    "KPlugin": {
        "Id": "$folder_name",
        "Name": "$folder_name",
        "ServiceTypes": ["Plasma/Wallpaper"]
    }
}
EOF
    
    echo "✓ Created: ${folder_name}_Wallpaper"
    ((processed++))
done

echo ""
echo "Done! Processed: $processed, Skipped: $skipped"
echo "Output: $OUTPUT_DIR"